Folding chair



FIG. 1 is a perspective view.

FIG. 2 is a left side view.

FIG. 3 is a front elevational view.

FIG. 4 is a rear elevational view.

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view. 

I claim the ornamental design for a folding chair, as shown and described. 